The study, published in the journal Breast Cancer Research, found that coffee drinkers had a lower incidence of breast cancer than women who rarely drank coffee.

However, we also found that various lifestyle factors – such as age at menopause, exercise, weight, education and family history of breast cancer – affects rates of breast cancer, and Once these factors were taken into account, the protective effect of coffee on breast cancer only measurable breast cancer ER-negative.

“Often there is conflicting information on the beneficial effects of coffee – when we compare our results with that of a German study found that the data showed the same trend, but the relationship was much weaker,” the researchers said in a statement. “We suggest that this may have something to do with the way they prepared the coffee, or preferred grain type. It is unlikely that the protective effect is due to the phytoestrogens present in coffee and there was no reduction in the incidence ER-positive cancer in this study. “